NL191807C - Magneto-optical recording medium. - Google Patents

Magneto-optical recording medium.

Info

Publication number
NL191807C
NL191807C NL8600379A NL8600379A NL191807C NL 191807 C NL191807 C NL 191807C NL 8600379 A NL8600379 A NL 8600379A NL 8600379 A NL8600379 A NL 8600379A NL 191807 C NL191807 C NL 191807C
Authority
NL
Netherlands
Prior art keywords
magneto
recording medium
optical recording
optical
medium
Prior art date
Application number
NL8600379A
Other languages
Dutch (nl)
Other versions
NL8600379A (en
NL191807B (en
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL8600379A publication Critical patent/NL8600379A/en
Publication of NL191807B publication Critical patent/NL191807B/en
Application granted granted Critical
Publication of NL191807C publication Critical patent/NL191807C/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thin Magnetic Films (AREA)
NL8600379A 1985-03-20 1986-02-14 Magneto-optical recording medium. NL191807C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5442285 1985-03-20
JP60054422A JPS61214254A (en) 1985-03-20 1985-03-20 Photomagnetic recording material

Publications (3)

Publication Number Publication Date
NL8600379A NL8600379A (en) 1986-10-16
NL191807B NL191807B (en) 1996-04-01
NL191807C true NL191807C (en) 1996-08-02

Family

ID=12970271

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8600379A NL191807C (en) 1985-03-20 1986-02-14 Magneto-optical recording medium.

Country Status (4)

Country Link
JP (1) JPS61214254A (en)
KR (1) KR940008408B1 (en)
DE (1) DE3604642A1 (en)
NL (1) NL191807C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2601796B2 (en) * 1985-12-05 1997-04-16 日立マクセル株式会社 Magneto-optical recording medium
JPH0782670B2 (en) * 1985-07-12 1995-09-06 株式会社日立製作所 Magneto-optical recording medium
JPS6297153A (en) * 1985-10-23 1987-05-06 Sumitomo Metal Mining Co Ltd Thin film magnetic recording medium
KR890012281A (en) * 1987-01-14 1989-08-25 도날드 밀러 셀 Stable magneto-optical recording media
DE3912378A1 (en) * 1988-04-14 1989-10-26 Ricoh Kk Magneto-optical recording material
JP3130929B2 (en) * 1990-08-10 2001-01-31 ミネソタ マイニング アンド マニュファクチャリング カンパニー Thermomagnetic recording system with high storage density and direct overwrite capability

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900921A (en) * 1979-02-06 1980-08-08 Philips Nv THERMOMAGNETIC INFORMATION CARRIER AND OPTICAL MEMORY EQUIPMENT INCLUDED WITH SUCH INFORMATION CARRIER.
JPS6032331B2 (en) * 1980-03-12 1985-07-27 ケイディディ株式会社 magneto-optical recording medium
JPS5873746A (en) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> Photomagnetic recording medium
CA1206505A (en) * 1982-03-18 1986-06-24 Richard A. Phillips Immersed element protection
DE3317101A1 (en) * 1982-05-10 1983-11-10 Canon K.K., Tokyo Magneto-optical recording base
JPS5984358A (en) * 1982-11-04 1984-05-16 Seiko Instr & Electronics Ltd Photomagnetic recording medium
DE3382791T2 (en) * 1982-12-15 1995-12-07 Sharp Kk Magneto-optical memory.
JPS59178641A (en) * 1983-03-29 1984-10-09 Kokusai Denshin Denwa Co Ltd <Kdd> Photomagnetic recording medium
JPS6115308A (en) * 1984-07-02 1986-01-23 Hitachi Ltd Photomagnetic recording material
JPS6119644A (en) * 1984-07-06 1986-01-28 Idemitsu Petrochem Co Ltd Linear, low-density polyethylene resin composition
JPS6134744A (en) * 1984-07-25 1986-02-19 Hitachi Ltd Photoelectromagnetic recording medium
JPS6184803A (en) * 1984-10-03 1986-04-30 Oki Electric Ind Co Ltd Photo-magnetic recording medium

Also Published As

Publication number Publication date
DE3604642C2 (en) 1993-02-11
DE3604642A1 (en) 1986-10-02
JPS61214254A (en) 1986-09-24
KR860007645A (en) 1986-10-15
NL8600379A (en) 1986-10-16
NL191807B (en) 1996-04-01
KR940008408B1 (en) 1994-09-14

Similar Documents

Publication Publication Date Title
DE3671122D1 (en) INFORMATION RECORDING MEDIUM.
DE3680478D1 (en) MAGNETO-OPTICAL RECORDING MEDIUM.
DE3778168D1 (en) MAGNETIC RECORDING MEDIUM.
DE3583599D1 (en) INFORMATION RECORDING MEDIUM.
DE3773239D1 (en) MAGNETIC RECORDING MEDIUM.
DE3483476D1 (en) INFORMATION MEDIUM.
DE3877234D1 (en) MAGNETO-OPTICAL INFORMATION-CARRIER.
EP0232427A4 (en) Optical recording medium.
DE68921527D1 (en) Magneto-optical recording medium.
DE3577247D1 (en) MAGNETO-OPTICAL RECORD CARRIER.
DE3888109D1 (en) Magneto-optical recording medium.
DE3682475D1 (en) INFORMATION MEDIUM.
KR850007505A (en) Magnetic recording medium
DE3680057D1 (en) DOUBLE-SIDED OPTICAL RECORDING MEDIUM.
DE68917903D1 (en) Magneto-optical recording media.
DE3580635D1 (en) MAGNETIC RECORDING MEDIUM.
DE3685219D1 (en) MAGNETIC STORAGE MEDIUM.
DE3675732D1 (en) OPTICAL RECORDING MEDIUM WITH TRACK.
DE3575357D1 (en) MAGNETIC RECORDING MEDIUM.
DE3683166D1 (en) OPTICAL RECORDING MEDIUM.
DE69024747D1 (en) Magneto-optical recording medium
DE3684102D1 (en) OPTICAL RECORDING MEDIUM.
DE68925393D1 (en) Magneto-optical recording medium
DE69020992D1 (en) Magneto-optical recording medium.
DE3681146D1 (en) OPTICAL-MAGNETIC RECORDING CARRIER.

Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee

Effective date: 20030901